P11.33. Redesign the crane runway beam of Example 10.4.10, if it has to carry a lateral force of 3 kips in addition to the loads given there. The lateral force acts perpendicular to the beam, at each wheel, above the top flange.
[EXAMPLE 10.4.10: A 18 ft long, crane runway beam carries the two end wheels of a crane. The wheels are spaced 12 ft on centers and each transfers a maximum vertical live load of 24 kips to the beam. Neglect the lateral force and longitudinal force on the member. The crane beam is without lateral support except at the columns. The specified impact is 25% of the live load. Design the beam, using A242 Grade 50 steel. The maximum service live load deflection is to be limited to L/500.]